Forging machine



. 15 1936. w. H. WINEMAN 2,063,969

FORGING MACHINE Original Filed June 11, 1951 2 Sheets-Sheet l 15, 1936. w, H W EMAN 2,063,969

FORGING MACHINE Original Fi led June 11; 1931 2 Sheets-Sheet 2 17221672 for.

Patented Dec. 15, 1936 UNITED STATES PATENT OFFICE FORGING MACHINE Wade H. Wineman,

Michigan City, Ind., assignor to Sullivan Machinery Company, a corporation of Massachusetts used not only in blacksmith or forge shops, but is supported. also in contract work such as road building or The top portion ID of the frame member is the like; and it is therefore highly desirable that provided with a suitably formed recess I! for they be readily transportable, and therefore that the reception of a lower clamping die I 8. At all their parts be of light Weight. Provision of one side, the portion ID has an upstanding car 10 mechanism which shall not require a pressure member |9 supporting a pin 20 which forms a fluid operating motor for clamp operation, propivot for the upper clamping die or vise jaw 2|, vided adequate clamping pressure can be atthe latter having ear portions 22 at opposite tained without excessive weight, is desirable; but sides of the ear IS. A suitably formed recess 23 of course it is necessary that the clamping dein the upper vise jaw 2| supports an upper 15 vices be adapted for the rigid holding of the drill clamping die or vise jaw 24. The lower clampsteels upon which work is to be performed during die is held in position longitudinally of the ing certain operations. machine by a pin 25 receivable in a recess 26 in It is a primary object of my invention to prothe portion In of the main frame and is held vide an improved clamping mechanism. A more against upward movement from its seat by a die particular object of the invention is to provide retaining pin 21. The upper clamping die or n impr v d rill ha pe r h vi n improved vise jaw is held in position by a stud 28 passing clamping mechanism whereby through simple through an opening 29. man-D we Op mechanism a y rigid The upper vise jaw 2| is movable angularly 25 clamping can be eilected. Other objects and adabout the pivot pin toward and from clampvanta es of h inv n w become apparent ing position, and it receives its movement toward as the de p proceeds and the Several clamping position from two different devices. J'ec s a attained y the Organization and Both of these devices are operable by a lever 3| tails of construction hereinafter more fully dewhich is of t bell crank shape and is pivoted 3U scribed. at the end of its short arm on the frame at 32. In the accompany drawings, I have Shown The lever is connected at the juncture of its for purposes Of illustration one embodiment Of arms at 33 to a member which comprises a, the invention, a d n these drawingebody portion 35 and an angularly extending arm Fig. l is a side elevation of the illustrative em- 35 At its outer end ,1; 31 t arm 3 is pivofally J5 bodiment of e improved Clamping mechanism connected to a vertically extending link member embodied in a dri l S a p 38. The upper end of the link member 33 is F 2 is frOIlll elevation thereofpivotally connected at 39 to the upper vise jaw Fig. 3 is an approximately central section 2L It will be apparent t as the lever 3| taken on t e plane 0f the line of which has a foot rest 40 thereon, swings counter- 40 4 is a horizontal section on the Plane of clockwise about the pivot 32, a small angular the line 4- o F 2. movement will result in a substantial upward Fig. 5 is a detail sectional view on the broken movement f the pivot point 31 th resulting line Of Fig. 1, showing a Of the clamp material opening movement of the upper clampoperating mechanism. ing jaw 2|. A spring 42 connected between a as F s- 6 i a p v Of the upper clamp i wpin 43 on the frame and an opening 44 in the link This application is a division of my co-pend- 3 and Spring 4211 connected between a m 439. ins app Serial 543.635, filed June on the frame and a pin 44 on the member 34, 11, 1931. normally tend to maintain the lever 3| in raised The illustrative embodiment of my invention position and the clamping jaw 2| open. Adj so is incorporated in a mechanism which comprises cent the upper side of the body 35 of the lever a main frame I supporting a clamping or vise member 34 is a split threaded clamp 46 in which m ch s a gauging mechanism 3, n upseta rod 41 is rigidly secured. This rod at its upper ting mechanism 4, and a swaging mechanism 5. end is formed with an eye 48 in which a pin The main frame I of the machine is conven 49 is mounted, the opposite ends of the pin supiently formed as a. casting and comprises a top porting a cam lever 50 which is adapted to en- 55 33 Claims.

My invention relates to clamping mechanisms, and more particularly to clamping mechanisms particularly useful in the sharpening of drill steels. Such clamping mechanisms commonly form part of forging machines, and the latter are portion III, a pair of lateral leg portions and a base portion l2. The base portion |2 has secured thereto, as by bolts I4, a pair of foot members I5 serving to provide a more extended contact with the surface upon which the machine gage seats 5| at opposite sides of a slot 52 opening through the back side of the clamping jaw member 2|. It will be understood that when the cam lever 50 is thrown rearwardly, the rod 41 can be moved backwardly about its pivotal connection 33 with the bell crank, out of the slot 52, and permitted to engage a rest 53 suitably supported at the rear end of the machine, and there be supported. With the rod withdrawn thus from cooperation with the vise jaw 2|, the spring 42 will act upon the link 38 and open the vise jaw.

The clamping operation may now be briefly described. A steel to be clamped between the dies I8 and 24 is properly positioned upon the lower die, and the operator then depresses the lever 3| with his foot, which moves the upper clamping jaw 2| angularly about its pivot to closed position. When substantially closed position is reached, the operator takes hold of the cam lever 50 and moves the same together with the rod 41 forwardly until the lever 50 overlies the surfaces 5I. During such movement it will be noted that the operating rod 41 swings about an axis making a substantial angle with a line parallel to the jaw pivot axis, from a position outside the path of pivotal movement of said jaw to a position in the slot 52. Prior to such movement, the cam lever 50 lies outside the plane of jaw movement, and the swinging movement of the rod brings the cam lever 50 into the vertical plane of movement of the jaw and its supporting means. The cam lever 50 is then moved angularly about the pin 49, and a clamping engagement is effected. Then by stepping on the foot plate 40 on the lever 3|, the final clamping pressure will be imparted to the steel held between the dies I8 and 24, a very powerful clamping action being secured, due to the fact that the pivot 33 lies almost directly below the pivot 32 with the result that a very great amount of pressure can be transmitted to the bit due to the fact that the mechanical advantage is very great.

Gauging of finished bits is effected between an upper gauging die 55 and a lower adjustable gauging die 56. The upper die is carried by the pivoted upper clamping jaw 2|, while the lower is mounted in a recess 51 in the frame and is vertically adjusted in that recess by a screw 58 with whose polygonal head 59 a suitabfe angle clamp 60 cooperates. Obviously a gauging pressure is applied to the bit to be gauged, in substantially the same manner that the clamping pressure is applied, as just explained.

The upsetting mechanism 4 is supported in alinement with the clamping dies I8 and; 24, and its construction and mode of operation are fully described in my co-pending application Serial No. 543,635, above mentioned.

It will suffice, for this present application, to state that when a bit to be upset has been clamped between the dies I8 and 24, a. motor 62 supplied with motive fluid under control of a valve 61, will percussively actuate a suitable dolly I0 and effect the necessary upsetting and shaping operation on the end of the drill steel.

The swaging mechanism 5 is also fully described in my co-pending application Serial No. 543 ,635, above mentioned. For the present application, it is sufficient to state that it comprises an upper die I2 held in positionin the main frame I, and a lower die I5 vertically reciprocable in the frame I, there being a vertical hamima es mer motor 11 for actuating the lower die after suitably positioning it.

When it is desired to swage a steel, it will be placed in suitable position against the upper stationary swaging die I2, the lower swaging die I5 and its actuating motor will be moved upwardly, and the motor will be supplied with fluid to cause its operation.

It will be noted that the present mechanism is a very simple one, that no air is consumed in the operation of the clamping and gauging devices, and thus the relatively large consumption of air which is encountered with some drill sharpening mechanisms in the operation of the clamping devices is avoided, but that by reason of the great mechanical advantage of the present clamping mechanism drill steels may be securely held and adequately gauged by forces within the power of the operator himself. It will be noted, moreover, that the entire mechanism is light but rugged, that it may be readily transported from one job to another, and that it can easily be set up at any desired point of use.

While there is in this application specifically described one form which the invention may assume in practice, it will be understood that this form of the same is shown for purposes of illustration and that the invention may be modified and embodied in various other forms without departing from its spirit or the scope of the appended claims.

What I claim as new Letters Patent is:

1. In a forging machine, a clamping member, a cooperating pivoted clamping member, and means for effecting clamping operation of said pivoted clamping member including means for transmitting a clamping force thereto cooperating therewith at a point spaced from its axis of pivotal movement and cooperating clamping means associated with an element of said first mentioned means and actuated thereby.

2. In a forging machine, a stationary clamping die, a pivoted clamping member carrying a clamping die arranged to cooperate in one position of said pivoted clamping member with said stationary die, and means for efiecting clamping movement of said pivoted clamping member cooperating with the latter at a point thereon at the opposite side of the clamping die carried thereby from the axis of pivotal movement and cooperating clamping means associated with an element of said first mentioned means and actuated thereby.

and desire to secure by 3. In a forging machine, a stationary clamping die, a pivoted clamping member carrying a clamping die arranged to cooperate in one position of said pivoted clamping member with said stationary die, and a plurality of means for effecting closure of said clamping dies and for only thereafter imparting a final clamping pressure thereto both cooperating with the pivoted clamping member at the opposite side of the clamping die thereon from the axis of pivotal movement, said final clamping means operated by an element of said closure effecting means.

4. In a forging machine, a clamping device including a pivoted clamping member having a pivotal support at one end and a clamping die between said pivotal support and the other end thereof, and a plurality of positioning and final clamping force applying means cooperating with the last mentioned end of said clamping memher and operative to first position the clamping die and only thereafter to apply a final clamping pressure thereto, said final clamping means operated by an element of said positioning means.

5. In a forging machine, a clamping device including a pivoted clamping member carrying a vice jaw, means permanently connected with said clamping member for moving said vise jaw between open and substantially closed positions, and tension means detachably connected with said clamping member and tensionable from the side of said clamping member at which said vise jaw moving means is disposed for applying a final clamping force to said vise jaw after the same has been moved to substantially closed position by said first mentioned means.

6. In a forging machine, a clamping device including a pivoted clamping member carrying a vise jaw, means permanently connected with said clamping member for moving said vise jaw between open and substantially closed position, and tension means spaced from the jaw when the latter is open and connectible with said jaw only after substantial closure thereof, for drawing said jaw with increased clamping force into clamping position.

7. In a forging machine, a clamping device including a movable clamp jaw and means for opening and closing said jaw and causing said jaw to exert a clamping pressure including a common primary element to which force is applicable, and a plurality of cooperating jaw actuating devices each actuated by said element and one opertive to open and close said clamp jaw and another operative to apply a final clamping pressure thereto.

8. In a forging machine, a clamping device including a movable clamp jaw and means for opening and closing said jaw and causing said jaw to exert a clamping pressure including a common primary element to which force is applicable and devices each actuated by said element respectively for opening and closing said clamp jaw and for applying a final clamping pressure thereto, one of said devices having a constant operative connection with said clamp jaw and the other an intermittent operative connection therewith.

9. In a forging machine, a clamping device including a movable clamp jaw and means for opening and closing said jaw and causing said jaw to exert a clamping pressure including a common primary element to which force is applicable and devices each actuated by said element respectively for opening and closing said clamp jaw and for applying a final clamping pressure thereto, the first of said devices having a constant operative connection with said clamp jaw and the other an intermittent operative connection therewith.

10. In a forging machine, a clamping device including a movable clamp jaw having supporting means, and means for imparting a clamping pressure to said jaw through said supporting means having a bodily detachable connection with the latter enabling releasing of said clamping pressure imparting means from said clamp jaw supporting means at will, said connection completely disengagable therefrom and removable out of the plane of movement of said jaw and its supporting means during the complete opening of said jaw.

11. In a forging machine, a clamping device including a movable clamp jaw, means for imparting a clamping pressure thereto including a link movable substantially in the direction of desired jaw movement and at one end engaging said jaw, and at its opposite end provided with operating means having great mechanical advantage, and auxiliary clamping pressure imparting means cooperating with said link in efiecting clamping but coacting with said jaw separately whereby a cumulative effect is attained, said latter means actuated through a portion of said first mentioned means.

12. In a clamping mechanism, a movable clamp jaw, an operating lever, a plurality of rods having different functions and performing their respective functions at different times and operatively connected to said jaw to draw the same towards closed position and by a separate operation thereafter to apply final clamping pressure to said jaw, one rod efiecting closing of the jaw and the other rod effecting final clamping thereof, a member to which said rods are connected at spaced points, and means form-' ing a pivotal connection between said lever and said member substantially in alinement with one of said rods.

13. In a clamping mechanism, a movable clamp jaw, a pivotal operating lever, a plurality of rods having difierent functions and performing their respective functions at different times and operatively connected to said jaw to draw the same towards closed position and by a separate operation thereafter to apply final clamping pressure to said jaw, one rod effecting closing of the jaw and the other rod effecting final clamping thereof, a member to which said rods are connected at spaced points, and means forming a pivotal connection between said lever and said member substantially in alinement with one of said rods, the pivotal axis of said lever being closely adjacent the axial line of said rod.

14. In a clamping mechanism, a pivoted clamp jaw having adjacent its free end a slot, a pivoted operating rod for said jaw selectively positionable by swinging movements in planes perpendicular to the planes of clamp jaw movement either outside the path of pivotal movement of said jaw or in said slot, said rod carrying means engageable with a surface of said jaw to apply force to move the latter towards closed position, and a connection at the other end of said rod for applying traction thereto including a pivoted lever pivotally connected to the rod for moving the latter towards a position perpendicular to the pivot of the lever, said rod and means being releasable at will from said slot and cooperating relation with said jaw.

15. In a clamping mechanism, a pivoted clamp jaw having adjacent its free end a slot, a pivoted operating rod for said jaw selectively positionable by swinging movements about an axis making a substantial angle with a line parallel to the jaw pivot axis either outside the path of pivotal movement of said jaw or in said slot, said rod carrying releasable cam means engageable with a surface of said jaw to apply force to move the latter towards closed position, and a connection at the other end of said rod for applying traction thereto including a pivoted lever pivotally connected to the rod for moving the latter towards a position perpendicular to the pivot of the lever, said rod and cam means being releasable at will from said slot and cooperating relation with said jaw.

16. In a forging machine, a clamping device including a pivoted clamping member having a pivotal support at one end and a clamping die beneath said pivotal support and the other end thereof, and positioning and final force applying means cooperating with the last mentioned end of said clamping member and each having a connection with the latter during clamping which permits swinging movement relative to the same and common final operating means for said positioning and final force applying means.

1'7. In a forging machine, a clamping device including a pivoted clamping member having a pivotal support at one end and a clamping die between said pivotal support and the other end thereof, and positioning and final force applying means each comprising tensioned link means individual thereto and cooperating with the last mentioned end of said clamping member and sequentially operable first to position said clamping die in substantially closed position and thereafmr to efiect clamping,

18. In a forging machine, a stationary clamping die, a pivoted clamping member carrying a clamping die arranged to cooperate in one position of said pivoted clamping member with said stationary die, and means for efiecting closure of said clamping dies and for imparting a clamping pressure thereto including a member for moving said pivoted clamping member to closed position, a member connectible with said pivoted clamping member to transmit clamping pressure thereto, and means cooperating with said members whereby movement of said last recited member towards its working position causes said first mentioned moving member to move said pivoted clamping member to closed position.

19. In a forging machine, a stationary clamping die, a pivoted clamping member carrying a clamping die arranged to cooperate in one position of said pivoted clamping member with said stationary die, and means for effecting closure of said clamping dies and for imparting a clamping pressure thereto including a member for moving said pivoted clamping member to closed position, a member connectible with said pivoted clamping member to transmit clamping pressure thereto, and means cooperating with said members whereby movement of said last recited member towards its working position causes said first mentioned moving member to move said pivoted clamping member to closed position, said last mentioned means having provision for transmitting the final clamping force to the member connectible to the pivoted clamping member.

20. In a forging machine, a clamping member, a cooperating pivoted clamping member, means for initially positioning said pivoted clamping member adjacent said first mentioned clamping member, and distinct means for thereafter effecting clamping operation of said pivoted clamping member including link means, an operating lever, and connections between said link means and operating lever providing great mechanical advantage, said positioning means including an element actuated by said lever.

21. In a forging machine, a stationary clamping die, a cooperating pivoted clamping die, and a plurality of means for effecting clamping movement of said pivoted clamping die cooperating with the latter, one of said means providing a positioning movement and one applying final clamping force, and the latter means including a member engaging said pivoted die, an operating lever, and connections between said member and said operating lever having great mechanical advantage, said positioning means including an element actuated through a portion of said connections.

22. In a forging machine, a clamping device including a movable clamp jaw, means for imparting a clamping pressure thereto having a bodily detachable connection therewith for releasing said means from said jaw at will, said means being normally released from said jaw during initial positioning of the latter, and means for initially positioning said jaw and including an element through which said clamping pressure imparting means is actuated.

23. In a clamping mechanism, a movable clamp jaw, an operating lever, a rod operatively connected to said jaw to initially move the same towards closed position, a second rod operatively connected to said jaw to impart to the latter a final clamping pressure, a member to which said rods are connected at spaced points, and means forming a pivotal connection between said lever and said member.

24. In a clamping mechanism, a movable clamp jaw, an operating lever, a rod operatively connected to said jaw to initially move the same towards closed position, a second rod operatively connected to said jaw to impart to the latter a final clamping pressure, a member to which said rods are connected at spaced points, and means forming a pivotal connection between said lever and said member substantially in alinement with one of said rods.

25. In a clamping mechanism, a movable clamp jaw, an operating lever, a rod operatively connected to said jaw to initially move the same towards closed position, a second rod operatively connected to said jaw to impart to the latter a final clamping pressure, a member to which said rods are connected at spaced points, and means forming a pivotal connection between said lever and said member substantially in alinement with one of said rods, the pivotal axis of said lever being closely adjacent the axial line of said last mentioned rod.

26. In a forging machine, a clamping member, a cooperating pivoted clamping member, and means for effecting clamping operation of of said pivoted clamping member including means for transmitting a clamping force thereto cooperating therewith at a point spaced from its axis of pivotal movement and having a primary operating element, and cooperating clampoperating means cooperating with and operated by said primary operating element of said first mentioned means.

27. In a forging machine, a stationary clamping die, a pivoted clamping member carrying a clamping die arranged to cooperate in one position of said pivoted clamping member with said stationary die, and means for effecting clamping movement of said pivoted clamping member cooperating with the latter at a point thereon at the opposite side of the clamping die carried thereby from the axis of pivotal movement and having a primary operating element, and cooperating clamp-operating means cooperating with and operated by said operating element of said first mentioned means.

28. In a forging machine, a clamping member, a cooperating pivoted clamping member, and means for effecting clamping operation of said pivoted clamping member including means for transmitting a clamping force thereto cooperating therewith at a point spaced from its axis of pivotal movement and having a foot treadle, and cooperating clamp-operating means cooperating with and operated by said foot treadle of said first mentioned means.

29. In a forging machine, a stationary clamping die, a pivoted clamping member carrying a clamping die arranged to cooperate in one position of said pivoted clamping member with said stationary 'die, and means for effecting clamping movement of said pivoted clamping member cooperating with the latter at a point thereon at the opposite side of the clamping die carried thereby from the axis of pivotal movement and having a foot treadle, and cooperating clamp-operating means cooperating with and operated by said foot treadle of said first mentioned means.

30. In a forging machine, a clamping member, a cooperating pivoted clamping member, means for efiecting clamping operation of said pivoted clamping member including means for transmitting a clamping force thereto cooperating therewith at a point spaced from its axis of pivotal movement, and cooperating clamp-operating means associated with and operable by an element of said first mentioned means, said latter means being wholly released from said pivoted clamping member during complete opening of said pivoted clamping member.

31. In a forging machine, a stationary clamping die, a pivoted clamping member carrying a clamping die arranged to cooperate in one position of said pivoted clamping member with said stationary die, means for effecting clamping movement of said pivoted clamping member cooperating with the latter at a point thereon at the opposite side of the clamping die carried thereby from the axis of pivotal movement, and cooperating clamp-operating means associated with and operable by an element of said first mentioned means, said latter means being wholly released from said pivoted clamping member during complete opening of said pivoted clamping member.

32. In a forging machine, a stationary clamping die, a pivoted clamping member carrying a clamping die arranged to cooperate in one position of said pivoted clamping member with said stationary die, and a plurality of means for effecting closure of said clamping dies and for imparting a clamping pressure thereto both cooperating with the pivoted clamping member at the opposite side of the clamping die thereon from the axis of pivotal movement, and common operating means for said closure effecting and clamping pressure imparting means.

33. In a forging machine, a clamping device including a pivoted clamping member having a pivotal support at one end and a clamping die between said pivotal support and the other end thereof, positioning means for said clamping member, final clamping force applying means for said clamping member, said positioning and final clamping force applying means cooperating with the last mentioned end of said clamping member, and common operating means for said positioning and final clamping force applying means.

WADE H. WINEMAN. 

